74909723 has 16 divisors (see below), whose sum is σ = 91825920. Its totient is φ = 59675616.

The previous prime is 74909713. The next prime is 74909759. The reversal of 74909723 is 32790947.

It is not a de Polignac number, because 74909723 - 2¹² = 74905627 is a prime.

It is a super-2 number, since 2×74909723² = 11222933199873458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74909713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1736 + ... + 12362.

It is an arithmetic number, because the mean of its divisors is an integer number (5739120).

Almost surely, 2^74909723 is an apocalyptic number.

74909723 is a deficient number, since it is larger than the sum of its proper divisors (16916197).

74909723 is a wasteful number, since it uses less digits than its factorization.

74909723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 74909723 is about 8655.0403234185. The cubic root of 74909723 is about 421.5470590021.

The spelling of 74909723 in words is "seventy-four million, nine hundred nine thousand, seven hundred twenty-three".